Igor wants to build a few rooms. He can only build off of a place 
where he can get a link. He needs to ask around to find one of these 
if he is just starting to build.

Murf is going to give Igor a link named 'n;north'. That means that 
both 'n' and 'north' activate that exit. Igor digs a room, and links 
the exit to it. He types: 

@dig Igor's House 

At this point, the program will respond "Igor's House created with  
number  xxxx". We'll pretend it gave the room number as 1234.

@link n;north=#1234 

The program will respond with "Linked." Now Igor sets a few messages 
on the exit. He types:

@desc n=North is Igor's House. 
@succ n=You crawl into Igor's House. 
@osucc n=crawls into Igor's House. 

These messages work just the same way they work on object, like the 
Ferret Chow. Next, Igor goes in the room, and creates an out exit. 
Murf has been nice enough to not only give Igor the n;north exit, but 
to set his room to L(ink_ok). Murf's room number is 623.  Igor types 
'n' or 'north' to go in the room, then types: 

@open out;back;s;south=#623 

The program will respond with "Opened. Trying to link... Linked." Igor 
now has a south exit back to Murf's room. Murf can now set his room to 
!link_ok, so no one else can link to it. Igor puts some messages on 
the south link as well.

He decides he wants to describe the room, so he types: 

@desc here=This is Igor's home. It is a small room, lined with paper 
shreds. Over in the corner is a small hole.

See EXAMPLES3 for more.